The Blu-ray Disc Founders (BDF) group was a collection of technology firms working together to develop and support the Blu-ray Disc

Blu-ray Disc

Blu-ray Disc is an optical disc storage medium designed to supersede the DVD format. The plastic disc is 120 mm in diameter and 1.2 mm thick, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer, with dual layer discs being the norm for feature-length video discs...

. The Blu-ray Disc Founders was launched on May 20, 2002. As Blu-ray support grew progressively; announcements in 2004 included Hewlett Packard and Dell, which declared backing for the standard on January 12, 2004, and TDK on March 19, 2004. It announced that Blu-ray Disc Founders will shift to Blu-ray Disc Association

Blu-ray Disc Association

The Blu-ray Disc Association is the industry consortium that develops and licenses Blu-ray Disc technology and is responsible for establishing format standards and promoting business opportunities for Blu-ray Disc...

 (BDA) in October on May 18, 2004. It shifted to Blu-ray Disc Association on October 4, 2004.

The companies are:

• Sony Corporation
  Sony
  , commonly referred to as Sony, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan and the world's fifth largest media conglomerate measured by revenues....
  
  
• 20th Century Fox
  20th Century Fox
  Twentieth Century Fox Film Corporation — also known as 20th Century Fox, or simply 20th or Fox — is one of the six major American film studios...
  
  
• Dell
  Dell
  Dell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...
  
  
• Hewlett Packard
• Hitachi
  Hitachi, Ltd.
  is a Japanese multinational conglomerate headquartered in Marunouchi 1-chome, Chiyoda, Tokyo, Japan. The company is the parent of the Hitachi Group as part of the larger DKB Group companies...
  
  
• LG Electronics
  LG Electronics
  LG Electronics is a global electronics and telecommunications company headquartered in Yeouido, Seoul, South Korea. The company operates its business through five divisions: mobile communications, home entertainment, home appliance, air conditioning and business solution...
  
  
• Panasonic Corporation
• Mitsubishi Electric
  Mitsubishi Electric
  is a multinational electronics and information technology company headquartered in Tokyo, Japan. It is one of the core companies of the Mitsubishi Group....
  
  
• Philips
  Philips
  Koninklijke Philips Electronics N.V. , more commonly known as Philips, is a multinational Dutch electronics company....
  
  
• Pioneer
• Samsung Electronics
  Samsung Electronics
  Samsung Electronics is a South Korean multinational electronics and information technology company headquartered in Samsung Town, Seoul...
  
  
• Sharp
  Sharp Corporation
  is a Japanese multinational corporation that designs and manufactures electronic products. Headquartered in Abeno-ku, Osaka, Japan, Sharp employs more than 55,580 people worldwide as of June 2011. The company was founded in September 1912 and takes its name from one of its founder's first...
  
  
• TDK
• Thomson
  Thomson SA
  Technicolor SA , formerly Thomson SA and Thomson Multimedia, is a French international provider of solutions for the creation, management, post-production, delivery and access of video, for the Communication, Media and Entertainment industries. Technicolor’s headquarters are located in Issy les...